Lumbar degenerative disc disease refers to the symptoms of lower back pain and/or radiating pain, numbness or weakness in the legs stemming from a degenerated spinal disc. Cervical Degenerative Disc Disease Video. Neck pain and stiffness may be the result of cervical degenerative disc disease.umbar degenerative disc disease refers to the symptoms of lower back pain and/or radiating pain, numbness or weakness in the legs stemming from a degenerated spinal disc. Cervical Degenerative Disc Disease Video. Neck pain and stiffness may be the result of cervical degenerative disc disease.
Nearly every cell in a personâs body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T).
Chromosomes, DNA and genes. The nucleus of a cell contains chromosomes that carry genetic information. Most body cells have the same number of chromosomes, but this varies between species. Human body cells, for example, each have 23 matching pairs of chromosomes. Chromosomes are made from long, coiled molecules of DNA. A gene is a shorter region of DNA that carries the genetic code for a particular characteristic or cell activity. DNA molecules contain chemicals called bases. Note that these are not the bases you come across in chemistry - which neutralise acids.